Ajit Nair

US Patent:

7150737, Dec 19, 2006

Filed:

Dec 23, 2002

Appl. No.:

10/328560

Inventors:

Phillip D. Purdy - Dallas TX, US
Ajit Nair - Fremont CA, US
Kamal Ramzipoor - Fremont CA, US
Mehran Bashiri - San Carlos CA, US
Pete Phong Pham - Fremont CA, US

Assignee:

Sci/Med Life Systems, Inc. - Maple Grove MN
Board of Regents, The University of Texas System - Austin TX

International Classification:

A61M 31/00

US Classification:

604506, 604 9301

Abstract:

Disclosed are methods and devices for navigating a subarachnoid space in a vertebrate organism including percutaneously introducing a device into the spinal subarachnoid space at an entry location. Navigation of the spinal subarachnoid space is disclosed for the purpose of reaching a desired location in the subarachnoid space or the intracranial space, including areas in and around the spinal cord and brain. Once a desired location is reached, methods and devices for cooling or heating the desired location to cause physiologic changes are suggested.

US Patent:

20030130577, Jul 10, 2003

Filed:

Dec 23, 2002

Appl. No.:

10/328349

Inventors:

Phillip Purdy - Dallas TX, US
Ajit Nair - Fremont CA, US
Pete Pham - Fremont CA, US
Kamal Ramzipoor - Fremont CA, US
Mehran Bashiri - San Carlos CA, US
Joseph Eder - Los Altos Hills CA, US

Assignee:

Board of Regents, The University of Texas System

International Classification:

A61B006/00

US Classification:

600/433000, 604/523000

Abstract:

A variety of devices for use in accessing the subarachnoid space are described. In several embodiments an introducer sheath is disclosed having three main sections, a distal portion, an intermediate portion, and a proximal portion. The distal portion and intermediate portion form a first bend, and the intermediate portion and the proximal portion form a second bend, giving the overall device a general L-shape, S-shape, C-shape, or a three dimensional Z-shape. Apparatuses for attaching an introducer sheath to the skin of a patient are also discussed, as are methods for using, shaping and sizing an introducer sheath.